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Industry Article: Characterizing Gas Hydrate Reservoirs

Well log data aids in the understanding of gas hydrate behavior.

Publication: E&P
Publication Date:
08/01/2006

A new generation of well logging tools and interpretation techniques has been developed and applied successfully in a laminated gas hydrate reservoir in the Nankai Trough, offshore Japan. Nuclear magnetic resonance (NMR) tools were used to estimate gas hydrate saturation, and dipole sonic tools were used to estimate the magnitudes and directions of the maximum and minimum horizontal stresses, critical to wellbore design, production optimization and operational safety. In addition, gas hydrate growth is sediments at the pore scale was determined.